Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

kruszi123's avatar
kruszi123
Icon for Mist rankMist
May 19, 2026

Logging F5 response via Logging profile

Hi, I am preparing a rule which limits requests per second based on IP and endpoint. There is also prepared response logging profile which sends logs to specific server with Elastic via TCP. Request...
irule
log
logging profile
logs
logstash
Requests
respond
response
Injeyan_Kostas's avatar
Injeyan_Kostas
Icon for MVP rankMVP
May 19, 2026

Hello kruszi123​ 

This happens because response logging profile logs only responses Virtual server has received and no the ones that have been generated by an irule attached to it.

To overcome this I can think two solutions.

  1. Create a Layered Virtual Servers setup. Attach response logging profile to first an your irule to second. The first one will receive the responses and will log them.
  2. Use HSL in your irule to log responses generated by it.